← Vulnerability feed

Vulnerability record · CVE-2019-19624 · published 6 December 2019

CVE-2019-19624: Opencv out-of-bounds read vulnerability

Opencv · Opencv

An out-of-bounds read was discovered in OpenCV before 4.1.1. Specifically, variable coarsest_scale is assumed to be greater than or equal to finest_scale within the calc()/ocl_calc() functions in dis_flow.cpp. However, this is not true when dealing with small images, leading to an out-of-bounds read of the heap-allocated arrays Ux and Uy.

6.5 CVSS 3.1 Medium EPSS 1.8% · top 22.9% CWE-125 · Out-of-bounds read
6.5CVSS 3.1 base score, v2 6.4
1.8%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
5References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

An out-of-bounds read was discovered in OpenCV before 4.1.1. Specifically, variable coarsest_scale is assumed to be greater than or equal to finest_scale within the calc()/ocl_calc() functions in dis_flow.cpp. However, this is not true when dealing with small images, leading to an out-of-bounds read of the heap-allocated arrays Ux and Uy.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/opencv/opencv/commit/d1615ba11a93062b1429fce9f0f638d1572d3418 PatchThird Party Advisory
https://github.com/opencv/opencv/issues/14554 ExploitIssue TrackingThird Party Advisory
https://access.redhat.com/security/cve/cve-2019-19624 Third Party Advisory
https://github.com/opencv/opencv/commit/d1615ba11a93062b1429fce9f0f638d1572d3418 PatchThird Party Advisory
https://github.com/opencv/opencv/issues/14554 ExploitIssue TrackingThird Party Advisory

Track CVE-2019-19624 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2019-11043PHP-FPM buffer overflow enables remote code executionPHP-FPM in certain configurations writes past allocated buffers into FCGI protocol data space, an out-of-bounds write (CWE-787, CWE-120). It affects …KEVEPSS 100%analysed9.8CVE-2018-14667RichFaces Framework EL injection enables unauthenticated remote code executionRichFaces Framework 3.X through 3.3.4 is vulnerable to Expression Language injection through the UserResource resource. A remote, unauthenticated att…KEVEPSS 74%analysed9.8CVE-2014-7169GNU Bash environment variable function parsing command injection (Shellshock variant)GNU Bash through 4.3 bash43-025 processes trailing strings after malformed function definitions in environment variable values, allowing command inje…KEVEPSS 100%analysed9.8CVE-2014-6271GNU Bash environment variable command injection (ShellShock)GNU Bash through 4.3 processes trailing strings after function definitions in environment variable values, allowing injected commands to run when Bas…KEVEPSS 100%analysed9.0CVE-2021-40438Apache HTTP Server mod_proxy SSRF via crafted URI pathA crafted request URI path can make mod_proxy forward the request to an origin server chosen by the remote user, an SSRF flaw in Apache HTTP Server 2…KEVEPSS 100%analysed8.8CVE-2025-31277Apple WebKit memory corruption via malicious web contentApple WebKit fails to handle memory correctly when processing crafted web content, leading to memory corruption across Safari, iOS, iPadOS, macOS, tv…KEVEPSS 1.6%analysed8.8CVE-2023-5217libvpx VP8 encoding heap buffer overflow exploited via crafted HTMLA heap buffer overflow in the VP8 encoder in libvpx affects Google Chrome before 117.0.5938.132 and libvpx 1.13.1, and is reachable through a crafted…KEVEPSS 49%analysed8.8CVE-2023-32373Apple WebKit use-after-free enables code execution via web contentA use-after-free flaw in Apple's WebKit engine was fixed across watchOS, tvOS, macOS, iOS, iPadOS and Safari. Processing maliciously crafted web cont…KEVEPSS 12%analysed

Source: NIST National Vulnerability Database (record CVE-2019-19624), CISA KEV, FIRST EPSS (scores of 2026-09-30). This page is refreshed as NVD updates the record.